Eragrostis polytricha
Eragrostis atrovirens
hairysheath lovegrass
thalia lovegrass
30-62 cm, erect, glabrous and shiny below the nodes.
(60)75-130 cm, erect.
sometimes densely pilose dorsally and on the collars, margins and apices hairy, hairs to 5 mm;
ligules 0.2-0.4 mm;
blades 5-20(33) cm long, 1-3.5 mm wide, involute to flat, both surfaces with scattered hairs, adaxial surfaces densely hairy behind the ligules, hairs to 7 mm.
glabrous, apices hairy, hairs to 4 mm;
ligules 0.1-0.3 mm;
blades (5)8-20 cm long, (1)2-3(4) mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces mostly scabridulous, long ciliate basally.
15-25 cm long, 5-27 cm wide, ovate, open;
primary branches 0.6-15 cm, diverging up to 90° from the rachises, capillary, naked basally;
pulvini hairy, hairs to 8 mm;
pedicels 1.4-10(16) mm, divergent.
(7)10-20(28) cm long, (2.5)4-15 cm wide, ovate, open;
primary branches (3)5-10(13) cm, diverging 20-60° from the rachises, wiry, somewhat capillary, naked basally;
pulvini glabrous or sparingly hairy, hairs shorter than 2 mm;
pedicels 1-10 mm, appressed, scabridulous.
(2.5)3-5 mm long, 1.1-1.6 mm wide, narrowly lanceolate to linear-oblong, plumbeous, with 4-9 florets;
disarticulation acropetal, paleas persistent.
5-10(19) mm long, 1.4-2.4 mm wide, ovate-lanceolate, plumbeous to purplish, with 10-22 florets;
disarticulation acropetal, glumes first, then the florets.
broadly ovate to narrowly lanceolate, hyaline to membranous;
lower glumes 1.1-1.6 mm;
upper glumes 1.2—1.8 mm;
lemmas 1.2-1.8 mm, broadly ovate, membranous throughout, lateral veins inconspicuous, apices acute;
paleas 1.1-1.7 mm, membranous to hyaline, narrower than the lemmas, apices obtuse;
anthers 3, 0.3—0.5 mm, reddish-purple.
subequal, lanceolate to ovate, membranous;
lower glumes 1.2-1.4 mm, narrower than the upper glumes;
upper glumes 1.4-1.7 mm;
lemmas (1.5)1.7-2 mm, broadly ovate, leathery, keels scabridu-lous, lateral veins evident, apices acute;
paleas 1.4-1.9 mm, hyaline, bases not projecting beyond the lemmas, keels scabridulous, apices acute to obtuse;
anthers 3, 0.7-0.9 mm, reddish-purple.
0.5-0.8 mm, obovoid to somewhat prism-shaped, laterally compressed, with a well-developed adaxial groove, finely striate, opaque to translucent, reddish-brown.
0.6-0.9 mm, obovoid to ellipsoid, terete, opaque, somewhat striate, reddish-brown.
= 60, 80.
= 60.
Eragrostis polytricha
Eragrostis atrovirens
Eragrostis polytricha grows in sandy and rocky areas, at 0-30 m, usually in open pinelands. It is native to Florida but its primary range lies to the south of the Flora region, from southern Mexico through Central America to Venezuela, Chile, and Argentina.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eragrostis atrovirens is native to northern Africa, but it is now established in southeastern United States, where it grows along railways and roads, on beaches and in ditches, often in wet sandy soils and in association with Pinus, Taxodium, and Sabal.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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